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Finding the Fourth Proportional to 666,265.56, 919,446.48 and 360,341.97

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Solution

The fourth proportional to 666,265.56, 919,446.48 and 360,341.97 is: 497,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,265.56 : 919,446.48 = 360,341.97 : x
  2. Step 2: Convert to fraction form
    666,265.56/919,446.48 = 360,341.97/x
  3. Step 3: Cross multiply
    666,265.56x = 919,446.48 × 360,341.97
  4. Step 4: Simplify right side
    666,265.56x = 331,315,155,912.77
  5. Step 5: Solve for x
    x = 331,315,155,912.77/666,265.56
  6. Step 6: Final answer
    x = 497,271.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.